It's pretty standard. Although I think if a child doesn't drink water then squash should be allowed. Warm water out a water bottle tastes pretty yucky and not drinking enough can lead to utis and headaches so really depends on the child.

If they're thirsty, they'll drink water. And even if they don't, they won't turn into a pile of desiccated chemicals on their chairs if they don't have a drink every 20 minutes. Despite the clever marketing by the bottled water industry.

My dd's school only allows water, I fill her bottle every day and everyday when I collect her it's still full.They don't allow juice in packs lunches either and school trips there're only allowed bottled water. I'm not fussed either way, however I think on school trips they should be allowed a carton juice. Dd is 4.5 and in primary